<template>
  <li @mouseenter="handleShow(true)" @mouseleave="handleShow(false)" :style="{background:bgColor}">
    <label>
      <input type="checkbox" v-model="todo.complete"/>
      <span>{{ todo.title }}</span>
    </label>
    <button class="btn btn-danger" v-show="isShow" @click="del">删除</button>
  </li>
</template>

<script>
export default {
  name: "TodoItem",
  props:{
    todo:Object,
    delTodo:Function
  },
  data () {
    return {
      bgColor: 'white',
      isShow: false
    }
  },
  methods:{
    handleShow(isenter){
      if(isenter){
        this.isShow=true
        this.bgColor = 'green'
      }else{
        this.isShow=false
        this.bgColor = 'white'
      }
    },
    del(index){
      this.delTodo(index)
    }
  }
}
</script>

<style>
/*item*/
li {
  list-style: none;
  height: 36px;
  line-height: 36px;
  padding: 0 5px;
  border-bottom: 1px solid #ddd;
}

li label {
  float: left;
  cursor: pointer;
}

li label li input {
  vertical-align: middle;
  margin-right: 6px;
  position: relative;
  top: -1px;
}

li button {
  float: right;
  display: none;
  margin-top: 3px;
}

li:before {
  content: initial;
}

li:last-child {
  border-bottom: none;
}
</style>
